Current sea water temperature:
+54.9°F
| Minimum sea water temperature in December: | 59.7°F |
| Maximum sea water temperature in December: | 50.2°F |
| Average sea water temperature in December: | 55.0°F |
| more information | |
14 days
forecast
forecast
| Trieste |
monthly
weather
weather
| Trieste |
Sea water temperature for the last 10 days:
| December 24 | 54.9°F | December 19 | 55.0°F |
| December 23 | 55.4°F | December 18 | 55.2°F |
| December 22 | 55.9°F | December 17 | 55.4°F |
| December 21 | 55.2°F | December 16 | 55.6°F |
| December 20 | 54.5°F | December 15 | 55.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Trieste?
Based on the data about daily sea water temperature for the last three years the warmest sea in Trieste was noticed in August, July and September.
Monthly Sea Temperatures in Trieste, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 76.5°F. The highest and lowest sea temperatures during the month were 78.6°F and 74.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 78.6°F. The highest and lowest sea temperatures during the month were 81.5°F and 76.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.2°F. The highest and lowest sea temperatures during the month were 77.9°F and 72.9°F.
current
weather
weather
| Trieste |
weather in
December
December
| Trieste |
Best time for vacation in Trieste
Trieste on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Trieste
Local time: 14:51
December 24, wednesday
1500
41°F
SW
25 mph
25 mph
1800
39°F
W
26 mph
26 mph
2100
39°F
SW
23 mph
23 mph
December 25, thursday
0000
39°F
SW
19 mph
19 mph
0300
37°F
SW
17 mph
17 mph
0600
37°F
SW
16 mph
16 mph
0900
41°F
SW
14 mph
14 mph
1200
45°F
SW
14 mph
14 mph
